protected void parseFields() throws Exception {
for (Method m : getMethods(clazz)) {
DbPrimaryKey pk = m.getAnnotation(DbPrimaryKey.class);
DbPersistent p = m.getAnnotation(DbPersistent.class);
DbIndex idx = m.getAnnotation(DbIndex.class);
DbRelation r = m.getAnnotation(DbRelation.class);
// for ( Annotation a : m.getAnnotations()) {
// System.out.println(m.getName() + ": " + a.toString());
// }